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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <test.h> |
29 | #include <test.h> |
30 | #include <arch.h> |
30 | #include <arch.h> |
31 | #include <atomic.h> |
31 | #include <atomic.h> |
32 | #include <print.h> |
32 | #include <print.h> |
33 | #include <proc/thread.h> |
33 | #include <proc/thread.h> |
34 | 34 | ||
35 | #include <synch/rwlock.h> |
35 | #include <synch/rwlock.h> |
36 | 36 | ||
37 | #define READERS 50 |
37 | #define READERS 50 |
38 | #define WRITERS 50 |
38 | #define WRITERS 50 |
39 | 39 | ||
40 | static rwlock_t rwlock; |
40 | static rwlock_t rwlock; |
41 | 41 | ||
42 | static void reader(void *arg); |
- | |
43 | static void failed(void); |
- | |
44 | - | ||
45 | static void reader(void *arg) |
42 | static void reader(void *arg) |
46 | { |
43 | { |
47 | thread_detach(THREAD); |
44 | thread_detach(THREAD); |
48 | 45 | ||
49 | printf("cpu%d, tid %d: trying to lock rwlock for reading....\n", CPU->id, THREAD->tid); |
46 | printf("cpu%d, tid %d: trying to lock rwlock for reading....\n", CPU->id, THREAD->tid); |
50 | rwlock_read_lock(&rwlock); |
47 | rwlock_read_lock(&rwlock); |
51 | rwlock_read_unlock(&rwlock); |
48 | rwlock_read_unlock(&rwlock); |
52 | printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid); |
49 | printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid); |
53 | 50 | ||
54 | printf("cpu%d, tid %d: trying to lock rwlock for writing....\n", CPU->id, THREAD->tid); |
51 | printf("cpu%d, tid %d: trying to lock rwlock for writing....\n", CPU->id, THREAD->tid); |
55 | 52 | ||
56 | rwlock_write_lock(&rwlock); |
53 | rwlock_write_lock(&rwlock); |
57 | rwlock_write_unlock(&rwlock); |
54 | rwlock_write_unlock(&rwlock); |
58 | printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid); |
55 | printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid); |
59 | - | ||
60 | printf("Test passed.\n"); |
- | |
61 | - | ||
62 | } |
56 | } |
63 | 57 | ||
64 | static void failed(void) |
- | |
65 | { |
- | |
66 | printf("Test failed prematurely.\n"); |
- | |
67 | thread_exit(); |
- | |
68 | } |
- | |
69 | - | ||
70 | void test_rwlock3(void) |
58 | char * test_rwlock3(void) |
71 | { |
59 | { |
72 | int i; |
60 | int i; |
73 | thread_t *thrd; |
61 | thread_t *thrd; |
74 | 62 | ||
75 | printf("Read/write locks test #3\n"); |
- | |
76 | - | ||
77 | rwlock_initialize(&rwlock); |
63 | rwlock_initialize(&rwlock); |
78 | - | ||
79 | rwlock_write_lock(&rwlock); |
64 | rwlock_write_lock(&rwlock); |
80 | 65 | ||
81 | for (i=0; i<4; i++) { |
66 | for (i = 0; i < 4; i++) { |
82 | thrd = thread_create(reader, NULL, TASK, 0, "reader"); |
67 | thrd = thread_create(reader, NULL, TASK, 0, "reader"); |
83 | if (thrd) |
68 | if (thrd) |
84 | thread_ready(thrd); |
69 | thread_ready(thrd); |
85 | else |
70 | else |
86 | failed(); |
71 | printf("Could not create reader %d\n", i); |
87 | } |
72 | } |
88 | 73 | ||
89 | - | ||
90 | thread_sleep(1); |
74 | thread_sleep(1); |
91 | 75 | ||
92 | rwlock_write_unlock(&rwlock); |
76 | rwlock_write_unlock(&rwlock); |
- | 77 | ||
- | 78 | return NULL; |
|
93 | } |
79 | } |
94 | 80 |